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fireclay — [fīr′klā΄] n. a kind of clay capable of resisting intense heat, used for making firebricks, furnace linings, etc. * * * fire clay also fire·clay (fīrʹklā ) n. A type of clay that is able to withstand intense heat, used to make firebricks,… … Universalium

fireclay — [fīr′klā΄] n. a kind of clay capable of resisting intense heat, used for making firebricks, furnace linings, etc … English World dictionary

fireclay — noun Date: 1800 clay capable of withstanding high temperatures that is used especially for firebrick and crucibles … New Collegiate Dictionary